FROM --platform=${TARGETPLATFORM:-linux/amd64} ghcr.io/openfaas/of-watchdog:0.9.10 as watchdog

FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as build

COPY --from=watchdog /fwatchdog /usr/bin/fwatchdog

RUN apk update && apk upgrade && apk add crystal shards openssl-dev && apk cache clean

WORKDIR /home/app

COPY . .
COPY function/shard.yml shard.yml
RUN shards install
RUN crystal build main.cr -o handler --release && strip handler && rm -rf /root/.cache

# Create a non-root user
RUN addgroup -S app && adduser app -S -G app

USER app

WORKDIR /home/app

ENV fprocess="./handler"
EXPOSE 8080

HEALTHCHECK --interval=2s CMD [ -e /tmp/.lock ] || exit 1

ENV upstream_url="http://127.0.0.1:5000"
ENV mode="http"

CMD ["fwatchdog"]